Apparatus for handling concrete.



B.. WELGEQER, APPARATUS ma HANDLING CONCRETE. APPLICATION FILED MAY 26,1910.

wfu ,'atented. Sept. Ef?, 11912.

WH'NESSES: l l Mmmm, MMG g RUDOLPHVVELCKER) ATTORNEY.

R. WBLGKBR, APPARATUS POR HANDLING CONCRETE.

APPLIOATION rILBD MAY 2e, 1910. I P

Patented Bepi. i J, wm

2 sHzETa--smm 2.

NWEWOH,

1'0 1 `v'()fligu 3. The said-ports are in line, and

through the upright anges' of channels d which are ybolted to the 'beamsD and D2. Thebottom of the casing is completed'by a casting or receivingpart G having down- ;wardly and inwardly inclined sides. This receivingpart is provided at its inner end with. a small port within which isfitted the air-supply pipe o3, and a larger discharge port, K, fordischargingthrough a pipe section L and pipe a, in the direction ofarrow i 'uporiinjection of air through the downwardly and rearwardly-beveled vend c1 of the alr-supplypipe, the Vconcrete is driven out,with the air through the port K. Material'may be filled into the casingthrough j the collar'm and opening H, and the container may have a topplate, I. The'casing will preferably havevmovable concrete-admission.means, 4readily permitting supply of concrete while' still maintainingsubstantially air-tight the portion of the casing be low said means;thus a container will have a substantially air-tight chamber, W, intowhich 'the concrete falls, and which may have altapering bottom to guidethe concrete toward the discharge port K, The

-movable concretefadmission means, may be one having a plurality ofblades and having side plates,lso as to provide a succession ofcompartments. Itm'ay be mounted on and rotatable with an axle y, andmayitself be made of circular side-plates or disks R and S, and of bladesT, T, T2, T3, secured to angle-irons which, in turntare secured to theparts R, S. .As a consequence the blades may be arranged as shown inFig. 4, in which oase, as 1s well understood, the con- A' crete(supplied through opening H) falls upon thevblade T', accumulating inthe compart-ment between the side disks, R, S, until the weight causes apartial rotat-ion of ,the axis sutlicient to bring the top of plate T inposition to receive concrete., The continua.- 'tion of the rotation ofthe device will cause the concrete to drop from the blade T into thecasting G. The side plates (a7, as) of the container, are curved, asbefore mentioned, and sufficiently to have the edges' of the blades, orof air-tight packing (t, t, t2, t3) thereof sweep, for a major portionof their rotation, against such plates a7, as. By this vmeans,the spacebelow the admission device is maintained substantially airasa whole, tothe left, the packings t, 2 and t3 will be compressed and the area ofblade T will be shortenedwhile that of T3 will be increased. Thisshifting may be attained by moving the concrete-admission devicerelatively to the base D. To permit this, I have shown a constructionwherein two adjustments are necessary. The first of these comprises theformation of cut away portions all and au in the edgesv of the plates a5and a", to permit the passage of rods a', a2; 'the second of saidadjustments comprises means which permit the extremities of the lowerarms m2 m3 of each frame M, to have a slight movement widthwise of 'thebase or truck D. In the latter event, cach extremity, O, of the arms,carries a bolt Q, fitting slots in the'channels D D and J (Fig. Uponloosening the nuts carried by these bolts, and upon loosening nutscarried by the upper'tie-rods a and n2, the casting M and the axle y'may be shifted, either forwardly or rearwardly, for a slight distance,the holes a* (Figs. 3 and't) vin the plates v0,5 and a, through whichthe axle y passes being made larger than the axle for that purpose.After the adjustment has been made all of the nuts are again tightened.

I-Iereinbe'fore, it has been pointed out that the Acompressed air may besupplied intermittently, or in blasts, into the chamber W, of thecontainer. This may be effected in any desired manner, but I prefer thatthe arms .e shall be operatively controlled byv the rotation of theconcrete admission means. To assure this, the rod, Y, may have a hookend V which is engaged successively by each of the arms U of a partrotating in unison with axle y. Any suitable means (not shown) will.return the rod Y, and the latter may be slidably guided in eyesformedin'parts g/s and y.

What I claim is:

1. In an apparatus for handling concrete and the like, the combinationof an air tight casing having side walls sloping down-v wardly andinwardly and terminating in an L elongated channel extending lengthwise'.of

the bottom of the casing; an outlet conduit at the exit end of thechannel; an air supply pipe at the rear end ofthe channel and sodisposed as to deliver a'blast of air lengthwise of the channel; andmeans above the sloping walls for dropping small masses of concrete uponsaid walls for direction thereby into said blast of air.

2. In an apparatus for handling concrete and like material, thecombination of an air-tightA container adapted to hold highly compressedair therein and having a down- Wardly projecting tapering extension atits gated receiving part secured to the lower lower part; a downwardlynarrowed elonlav '= and like material,,thejcombination of anl ing' aIcontinuation thereof; air supply' moved athigh velocity into thedischarge pipe', whereupon the pressure of the. air 1n v the `casing isadded'to'- theY momentum of the masses..v V 3. In anr apparatusfor'jhandling concrete approximately ecylindrical axiallyhorizontal-casingiprovided with `a hopper like extension on its upper4partk and a downwardly projecting tapering extension at its lower part;a downwardly vnarrowed elongated cast metal receiving'part secured tothe lower part of said taperingextension and forming a continuationthereof; anair supply pipe entering the lower part of one end of thereceiving part parallel to the axis thereof; a discharge pipe of muchlarger diameter than the supply pipe and extending from the opposite endof the receiving part coaxial therewith, a rotatable passinglongitudinally through the casing, and a rotatable device formed ofblades and compressible paclings mounted on said axle and fitting snuglywithin the casing.

1l. In an apparatus for handling concrete and the like, the combinationof a substantially cylindrical air-tight casing having an outlet nearthe bottom thereof, and having a central opening in each end thereof;means for supplying fluid under pressure to said casing; horizontallyadj ustabl'y supported bearings in line with said central openings, anaxle passing through said bearings and openings; a rotatable deviceformed of compressible rotatable blades mounted on said axle and fittingin said casing.

5. Anapparatus comprising an approximately cylindrical air-tight casinghaving inlet and outlet parts and having itsi ends each provided with acentral opening, horizontal pieces `supported adjacent to the ends ofthe casing; bearing supports adjustably mounted on the horizontal piecesrespectively and eachhaving its bearing adjacent to one of said centralopenings; an axle passing 'through the casing, said cent-rai openingsand said bearings; and a rotatable device formed of rotatable blades andcompressible packings therefor mounted on said axle, said device beingadjustable eccentrically of the casing by adjusting the bearing supportson the horizontal pieces.

6. An apparatus comprising an approximately cylindrical oasing providedwith an ai. i' i sofsialaiodk Vchanrrei pieces.

atene 'otits Iupper part and having its ends Aeach provided -with-.acentral opening and an edge iiange haxfingy cut away portions in the-upper part thereof; anelongating receiving part communicating with .thebottom of the. casing, an air supply pipe 'through the upper endsof `the.respective X-shaped pieces, t the upper bolts passing also throughthefcut away portions; Athe lower bolts connecting and. through. there-i spective channelI pieces and also passing throughthe edge flange;`an axle passing throughthe easing, said central openings and thebearings; and a rotatabledevice formed ot rotatable blades andcompressiblel paclzings therefor mounted on said axle; saidl devicebeing` movable eccentrically vof the casing by adjusting the X-shapedcastings on the channel pieces and moving the axle in the centralopenings.

7. An apparatus comprising an approximately cylindrical casing providedWith an inlet at one side of its upper part and a downwardly projectingextension at its lower part and having its ends provided with a centralopening; and an edge -fiange provided with cutaway portions .in theupper part thereof; an elongated receiving part securedto the lower partot said extension; a bevel-ended supply pipe entering the lower part ofone end of the receiving part; a discharge pipe of larger diameter thanthe supply pipe extending from the opposite end of the receiving partapproximately in line therewith and with the supply pipe; channel piecesdisposed at the ends of the casing; X-shaped castings each having itslower ends adjustably secured to the channel pieces and its upper endsadjacent to said cut a tay portions, and each having a central hearing;lower bolts passing through. the opposite channel pieces and through theends ci.: ile upper bolts passing through the A ends of the X- sluipedmember and l meh said cut away portions; an axle pa @trough the feasing,said centrai ej, d said boa rings; and a rotatable dev f lmed ofrotatable blades and compressible j )aclings mounted on said axle saiddevice being movable eccentrica-ily of the easing by moving the axle inthe central opening by adjust-ing the lower ends or the X-shaoedcastings on the 8. In an apparatus for handling #concrete and'the lille,'a casin having a' .discharge ope'nir'ig, a movable evice for theadmission of concrete thereinto and ada ted to maintain theV lattersubstantially air-tight,

.outlet near the bottom thereof, and havlng a central o ening in eachendthereof; means for supp yingruid under vpressure t said casing;'horizontally adjustably Asupported I bearingsfinline-v'vith saidcentral openings,

an aide` passing through lsaidbearings andv openings, a rotatable deviceformed' ofcompressible rotatablevblades mounted on said axle and fittingin said casing; and a means operatively connected to 'said rotatabledevice for at intervals cutting off the supply 10. An apparatuscomprismg an approxi- `mately cylindrical air-tight 'casing' having I ecasin and a device opg' inlet and outlet parts and having its ends eachprovided,A with a central opening, horizontal pieces supported adjacentto the ends of the casing; bearing supports adjustably mounted on thehorizontal pieces respectively and each having its bearing adjacent toone of said central openings; an axle.

passing through the casing, Asaid central openings and said bearlngs; anair supply p1pe communicating with the casing; a discharge. pipeopposite the air supply pipe; a "rotatable device mounted on said axlefor feeding concrete in fro.-t of the air supply",

pipe a cut-oli' device for said air supply`y pipe; and an operativeconnection between the rotatable device .and the cut-olf device for atintervals cutting oil the supply of' air I to the air supply pipe.v

' v-In testimony whereof, I have signed my nameto this specification 'inthe presence of two Ysubscriblng Witnesses.

RUDOLPH WELCKER.

, Witnesses:

WILLIAM H. Buurman,` i ALFRED R.,ANnEBsoN.

